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Finding the Third Proportional to 12,758 and 18,748

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Solution

The third proportional to 12,758 and 18,748 is: 27,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758 : 18,748 = 18,748 : x
  2. Step 2: Convert to fraction form
    12,758/18,748 = 18,748/x
  3. Step 3: Cross multiply
    12,758x = 18,748 × 18,748
  4. Step 4: Simplify right side
    12,758x = 351,487,504
  5. Step 5: Solve for x
    x = 351,487,504/12,758
  6. Step 6: Final answer
    x = 27,550.36

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.